This name is a synonym of Symphyotrichum laeve (L.) Á.Löve & D.Löve.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 049FD281-9E79-456D-8B10-31DCB6A97532) with original publication details: 192 1856.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23611-2.
This name was in version 1 of The Plant List, record gcc-26973.